Raymond Yang writes:
Raymond> Still have questions, thanks ahead!
Raymond> According to DATASHEET
Raymond> "BMS -
Raymond> Boot memory space. Defines the initial value for Raymond> BR0[BA]. There are two possible bootmemory regions, HIMEM Raymond> and LOMEM 0 0xFE00_0000 -- 0xFFFF_FFFF 1 0x0000_0000 -- Raymond> 0x1FFF_FFFF "
Raymond> 1) So if let BMS=0, Raymond> - Does this mean the BR0[BA] have the exact address Raymond> of 0xFE00_00000
Immediately after reset - yes, this will be BR0 value. Then, in your code, you can set it to whatever you wish.
Raymond> or Raymond> - Does this mean the BR0[BA] could be one of the Raymond> address between range 0XFE00_00000 and 0xFFFF_FFFFF, if Raymond> this is the case, so how can i determine the specific value Raymond> of BR0[BA]?
Raymond> 2) With BMS=0 and CIP=0
Raymond> According to the datasheet,
Raymond> BR0[BA] = 0xFE00_0000 (Right?) START_VECTOR = 0xFFF0_0100
Yes.
Raymond> The span is START_VECTOR-BR0[BA] = 0xFFF0_0100 - Raymond> 0xFE00_0000 = 0x1F00100 > 16M, So if my flash is 8M bytes, Raymond> i can't use this configuration, right?
Wrong, read again. You will see your flash in the last 8MB (FF800000-FFFFFFFF). In fact, you will see it repeating itself four times (FE000000 means 32MB address space).
Raymond> 3) I pull-down the RSTCONF, it doesn't work, only with Raymond> BDI2000 attached and config-file from BDI2000 (RSTCONF up Raymond> of cuz), U-BOOT can start correctly. I.e.
For MONITOR_BASE=TEXT_ADDR=0xFFF00000 you need CFG_FLASH_BASE=0xFF800000. Check BDI initialisations and set the HRCW to get the same values.